About the MCAT
How many sections are on the MCAT?
Four
What organelle is responsible for producing most of the ATP in eukaryotic cells?
Mitochondria
What is the pH of a neutral solution at 25°C?
7
What functional group contains a carbonyl group bonded to a hydroxyl group?
Carboxylic acid
What is the SI unit of force?
Newton
What is the total possible MCAT score?
528
What are the three components of a nucleotide?
Nitrogenous base, five-carbon sugar, and phosphate group.
What is the chemical formula for sulfuric acid?
H₂SO₄
What is the hybridization of a carbon atom involved in a carbon-carbon double bond?
sp²
What is the equation for electrical resistance according to Ohm's law?
R = V/I
How long is the MCAT exam, including scheduled breaks?
Approximately 7.5 hours. Take 7 or 8.
What enzyme unwinds the DNA double helix during DNA replication?
Helicase
According to Le Chatelier's principle, what happens to equilibrium when additional reactant is added?
Equilibrium shifts toward the products
What type of reaction involves the removal of a leaving group and formation of a double bond?
Elimination
According to the continuity equation, what happens to fluid velocity when the cross-sectional area of a pipe decreases?
Velocity increases
Which MCAT section does not primarily test scientific knowledge?
CARS (Critical Analysis and Reasoning Skills)
What type of enzyme inhibition increases Km without changing Vmax?
Competitive inhibition
A reaction has a negative ΔG. Is the reaction thermodynamically spontaneous or nonspontaneous?
Spontaneous
What is the major product when a primary alcohol is fully oxidized?
Carboxylic acid
What type of lens converges parallel incoming light rays to a focal point?
Convex (converging) lens
How many questions are in the CARS section?
53
During oxidative phosphorylation, what ultimately serves as the final electron acceptor in the electron transport chain?
Oxygen
If the concentration of hydrogen ions increases by a factor of 100, how does the pH change?
Decreases by 2
In an SN2 reaction, does the nucleophile attack from the same side or opposite side of the leaving group?
Opposite side (backside attack), resulting in inversion of configuration
If the radius of a blood vessel decreases by half, what happens to resistance according to Poiseuille's law, assuming all other variables remain constant?
Resistance increases 16-fold